/*
 * Famon (http://code.google.com/p/famon/)
 * Copyright (c) 2010 Carl Crous.
 *
 * This file is part of Famon.
 *
 * Famon is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Famon is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Famon.  If not, see <http://www.gnu.org/licenses/>.
 */

package za.org.foobar.famon.frontend.server.data;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.gwtportlets.portlet.smartgwt.client.CriteriaDto;
import org.gwtportlets.portlet.smartgwt.client.DataTransferObject;
import org.gwtportlets.portlet.smartgwt.client.SmartPortletFactory;
import org.gwtportlets.portlet.smartgwt.server.DataProviderObject;
import za.org.foobar.famon.frontend.client.FamonException;
import za.org.foobar.famon.frontend.client.dto.LoggingEventDto;
import za.org.foobar.famon.frontend.server.FailureLogic;
import za.org.foobar.famon.model.ThreadInformation;

import java.util.List;

/**
 *
 */
public class LoggingEventDpo implements DataProviderObject {
    private final Log log = LogFactory.getLog(getClass());
    private static LoggingEventDpo instance;

    public static LoggingEventDpo get() {
        return instance != null ? instance : (instance = new LoggingEventDpo());
    }

    public String getDataSourceId() {
        return LoggingEventDto.DATA_SOURCE_ID;
    }

    public List<DataTransferObject> fetchData(SmartPortletFactory f) {
        CriteriaDto c = f.getCriteria();
        if (c == null) {
            throw new FamonException("No filtering found for LoggingEvent request");
        }
        log.info("Filtering records: " + f.getCriteria().toString());

        ThreadInformation threadInformation = FailureLogic.get().getThreadInformation(c, "failureId", "threadId");
        if (threadInformation == null) {
            throw new FamonException("No ThreadInformation found.");
        }
        return f.limitList(FailureLogic.get().getLoggingEventDtoList(threadInformation));
    }

    public DataTransferObject updateData(SmartPortletFactory smartPortletFactory) {
        return null;
    }

    public DataTransferObject addData(SmartPortletFactory smartPortletFactory) {
        return null;
    }

    public DataTransferObject removeData(SmartPortletFactory smartPortletFactory) {
        return null;
    }
}
